MK1620 End-face CNC External Cylindrical Grinder (Fully Enclosed)

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20-Series External Cylindrical Grinder

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Product Description

Typical machined parts

Main features of the machine tool

■ Closed-loop automatic grinding work cycle
■ Zhongyuan Precision’s Automatic Measuring Instrument
■ Configure the electrical cabinet
■ Automatic quantitative lubrication
■ Fully enclosed protective cover

Machine tool configuration

■ This machine is suitable for mass production of shaft-type parts and can simultaneously grind both the end faces and outer circles in a single pass. Provided the grinding wheel width is sufficient, it can grind multiple steps and end faces in one go, enabling form grinding. The more complex the part’s geometry, the greater the advantage of this machine. Under favorable conditions, a single operator can handle multiple machines simultaneously.
■ Equipped with the Shiji Xing HNC-808DG two-axis linkage system from Wuhan Huazhong CNC Co., Ltd. (other CNC systems can also be configured according to user requirements;)
■ Equipped with Zhongyuan Precision’s automated measuring instruments for online measurement, this system achieves a closed-loop, automated grinding cycle to ensure machining dimensional accuracy. It can be configured in combinations tailored to specific user requirements (and other measuring instruments can also be configured according to user needs).
■ Equipped with a separate electrical cabinet (with air conditioning for the electrical cabinet) and a separate oil tank;
■ The tailstock features precision ball bearings for linear motion and is equipped with pneumatic extension and retraction functionality.
■ The headstock spindle and tailstock spindle both use a No. 4 Morse taper.
■ Equipped with an automatic, quantitative lubrication pump to ensure adequate lubrication of the lead screw.
■ The configured guard is fully enclosed to ensure safe operation;
■ Equip with an enlarged water tank and a magnetic separator or a paper filter.

Grinding wheel head

■ Wheelhead feed
The wheelhead feed and the worktable feed both utilize AC servo motors driven by ball screws. The ball screws are from a Taiwanese brand (other brands of ball screws can also be configured according to user requirements).

■ Guide rail
The grinding wheel headstock and worktable guideways are equipped with plastic-coated guideways to enhance their seismic resistance and sensitivity.

■ Spindle of the grinding wheel headstock
The spindle of the grinding wheel headstock can be a hydrostatic, hydrodynamic, or direct-drive electric spindle.

Work accuracy

Roundness	Outer Cylindricity	Outer Roughness	Roughness of end face
0.0015 mm	0.005 mm	Ra ≤ 0.32 μm	Ra ≤ 0.8 μm

Main specifications and technical parameters

Item	Specification	Item	Specification
Grinding diameter range	φ8–φ200mm	Headstock top	4#Mt
Distance between the two tops	500/750mm	Tailstock top	4#Mt
Distance from the center of the headstock to the work table	125mm	Grinding wheel specification	500x(20~125)x203mm
Maximum longitudinal movement of the worktable	600/850mm	Grinding wheel motor rating	5.5/7.5Kw
Table movement speed range	0.01–4 m/min	Maximum linear speed of grinding wheel	40m/s
Table rotation angle	-5~+9°	Minimum feed of grinding wheel holder	0.001mm
Headstock spindle speed	(0-500 rpm)	Minimum table feed	0.001mm
Tailstock sleeve movement	25mm	Total motor power	12/14Kw
Maximum workpiece weight	20kg	Machine weight	3000kg

Video demonstration

Key words:

MK1620 End-face CNC External Cylindrical Grinder (Fully Enclosed)